Definition of giddy

• superl. - Having in the head a sensation of whirling or reeling about; having lost the power of preserving the balance of the body, and therefore wavering and inclined to fall; lightheaded; dizzy.
• superl. - Promoting or inducing giddiness; as, a giddy height; a giddy precipice.
• superl. - Bewildering on account of rapid turning; running round with celerity; gyratory; whirling.
• superl. - Characterized by inconstancy; unstable; changeable; fickle; wild; thoughtless; heedless.
• v. i. - To reel; to whirl.
• v. t. - To make dizzy or unsteady.